Patent US152179A successfully refreshed from Google Patents.
US152179A
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Improvement in cushion-seated valves
Assignee: —
•
Filing: —
•
Granted: 1874-06-16
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Expires: 1891-06-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:17
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/44; F02M59/46; F02M59/462; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/20; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7866; Y10T137/7867; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1877-06-15 | 1877-12-15 | 1878-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1881-06-15 | 1881-12-15 | 1882-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1885-06-15 | 1885-12-15 | 1886-06-16 | $7700.00 | Window Closed / Lapsed |